Choice is agony. How do you discard a whole world of possibility and settle for a single option?
The other hard thing about options is how to program the buggers in AL… After finding precisely zero results on Google (I’m sure there is something to be found, I just lack the patience to find it) I decided to share my findings here.
To add a field of type option

And to use an option as a variable:

So there you go, the agony of choice now lies with your users. Where it should be.